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. 2010 May;82(5):759–765. doi: 10.4269/ajtmh.2010.09-0206

Table 3.

Thermotolerant coliform testing in 126 households randomized to use chlorine, Moringa seeds, a closed container or follow prior practice over a 6-month period tested at baseline, 1 week, 6 weeks, and 4 months post-introduction of the intervention*

Intervention < 1 > 1 to ≤ 10 > 11 to ≤ 180 > 180 P value Total no. samples
Baseline
Control 0 0.00% 1 3.20% 1 3.20% 29 93.50% n/a 31
Chlorine 0 0.00% 0 0.00% 1 3.20% 30 96.80% 0.601 31
Moringa 0 0.00% 0 0.00% 3 9.40% 29 90.60% 0.371 32
Container 0 0.00% 0 0.00% 0 0.00% 31 100.00% 0.356 31
Totals 0 0.00% 1 0.80% 5 4.00% 119 95.20% 125
Sample at 1 week
Control 1 3.30% 0 0.00% 0 0.00% 29 96.70% n/a 30
Chlorine 10 32.30% 0 0.00% 2 6.50% 19 61.30% 0.003 31
Moringa 0 0.00% 0 0.00% 2 6.70% 28 93.30% 0.221 30
Container 1 3.20% 0 0.00% 1 3.20% 29 93.50% 0.611 31
Totals 12 9.80% 0 0.00% 5 4.10% 105 86.10% 122
Sample at 6 weeks
Control 0 0.00% 1 3.30% 5 16.70% 24 80.00% n/a 30
Chlorine 6 21.40% 1 3.60% 5 17.90% 16 57.10% 0.057 28
Moringa 0 0.00% 0 0.00% 5 17.20% 24 82.80% 0.612 29
Container 1 3.20% 2 6.50% 4 12.90% 24 77.40% 0.699 31
Totals 7 5.90% 4 3.40% 19 16.10% 88 74.60% 118
Sample at 4 months
Control 0 0.00% 0 0.00% 0 0.00% 30 100.00% n/a 30
Chlorine 2 7.10% 1 3.60% 0 0.00% 25 89.30% 0.184 28
Moringa 0 0.00% 0 0.00% 1 3.30% 29 96.70% 0.313 30
Container 1 3.20% 0 0.00% 2 6.50% 28 90.30% 0.217 31
Totals 3 2.50% 1 0.00% 4 3.40% 112 94.10% 119
*

At baseline, the samples were diluted 1 in 10, post-intervention they were tested undiluted. P values are for each intervention in comparison to control. n/a = not available.